Reflected XSS in Castile-La Mancha Regional Parliament video library
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Active
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-79.
Summary
The web application of the video library of the Regional Parliament of Castile-La Mancha is affected before October 2026. User-supplied content is embedded into pages without proper sanitising, which is a cross-site scripting flaw (CWE-79). A remote attacker can run arbitrary JavaScript in the browser of a victim who interacts with crafted content, and the attack requires user interaction.
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
Description from the CNA
A reflected Cross-Site Scripting (XSS) vulnerability has been identified in the web application of the Castile-La Mancha Regional Parliament’s video library. The application embeds user-supplied content into the page without properly sanitising it before it is rendered by the browser. Exploitation of this vulnerability could allow a remote attacker to execute arbitrary JavaScript code in the browser of a victim who interacts with the content crafted for the attack.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Regional Parliament of Castile-La Mancha | Video library of the Regional Parliament of Castile-La Mancha | before October 2026 | October 2026 | Patch available | CNA |
- Video library of the Regional Parliament of Castile-La Mancha VendorRegional Parliament of Castile-La Mancha Affected before October 2026 Fixed in October 2026 Patch available CNA
Remediation
The affected product is fixed in October 2026. The sources do not list a vendor advisory identifier for this fix.
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
- Fix · CNA Video library of the Regional Parliament of Castile-La Mancha (Regional Parliament of Castile-La Mancha) Fixed in October 2026
Timeline
- 2026-10-26 Threatist record created from CVE-2026-103377
- 2026-10-26 CISA SSVC decision points changed
- 2026-10-27 Alias added: GHSA-j342-hpfm-cfjv
References
Sources
- CVE-2026-103377 · CVE Program
- CVE-2026-103377 · NVD
- FIRST EPSS
- GHSA-j342-hpfm-cfjv · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences